Nathan Fillion, Elisabeth Moss Voice Animated 'Green Lantern'

Fillion, along with Elisabeth Moss, Henry Rollins, Jason Isaacs and Arnold Vosloo, have been cast as the voice actors in Green Lantern: Emerald Knights, the latest offering from the DC, Warner Premiere and Warner Bros. Animation lineup of animated movies.

Fillion, already a favorite among geeks for starring in Joss Whedon’s Firefly/Serenity projects, was the subject of a widely-seen fan-made trailer that hit the net in 2009, before Ryan Reynolds was cast in the big-budget tentpole. After seeing the spot, many fans hoped Fillion would get the part.

With Emerald Knights, in which Fillion will voice Hal Jordan/Green Lantern, the actor returns to the DC animated fold; he previously lent his voice as Steve Trevor in the animated Wonder Woman movie and worked on the Justice League cartoon.

Mad Men's Moss will voice Arisia, a young recruit in the space police force known as the Green Lantern Corps.